As it was said you can feed faster with the face mill. I just got a used
mill/drill. and I can take some pretty healthy cuts with a 1 1/2" inserted
cutter which uses 3 of the TPG322 inserts. I can justify a face mill because
the cost of each corner on an insert is less than having a cutter sent out
for sharpening. Last time I bought inserts I paid about $3.00 each for them.
If I use one corner on 3 inserts every time I index the insert costs me
$3.00. Also when I can afford to upgrade my mill to either a Bridgeport type
or a number 2 horizontal mill with a vertical attachment my 1 1/2" face mill
will work just fine there.
If I want a real nice finish and my machine isn't very ridged then a light
cut with a fly cutter is the way to go.
My mill won't go any slower than 350 rpm, so I figure that I couldn't
use a very large diameter fly cutter, so I use a 1 1/2" face mill with 3
TPG 322 inserts and it works just fine. Sometimes I look longingly at
those who have flycutters with a 4" diameter swing, but I cant' go as
slow as that 12 + inches per rev would require.
E. Walter Le Roy wrote: